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cerenkov辐射
相关语句
  cerenkov radiation
     CERENKOV RADIATION IN FEL
     自由电子激光器中的Cerenkov辐射
短句来源
     A Direct Method to Prove the Condition of Cerenkov Radiation v>c/n
     Cerenkov辐射条件v>c/n的证明的一种简便方法
短句来源
     The Cerenkov radiation field in FEL produced by the relativistic electron beam through a wiggler magnetic field in a medium system is analysed.
     本文分析了相对论电子束经过介质系统摆动器磁场时形成的自由电子激光器中的Cerenkov辐射场.
短句来源
     They have many strange properties such as negative group velocity, negative refractive index, perfect imaging, inverse Doppler effect and abnormal Cerenkov radiation.
     它具有诸如负群速度、负折射率、理想成像、逆Doppler频移、反常Cerenkov辐射等种种奇异的物理性质 . 经过多年的沉寂之后 ,近几年在实验上取得了突破性的进展 ,重新引起了人们的重视 .
短句来源
     Negative refractive index medium has many special properties,such as abnormal refractive phenomena,self-compression effects,anti-Doppler frequency move and abnormal Cerenkov radiation. These properties provide new ways to control light and a good vision of application for people.
     负折射介质具有许多独特的物理性质,即反常折射现象、自聚焦效应、逆Dopp ler频移和反常Cerenkov辐射等,这些性质为人们提供了控制光的全新手段,具有良好的应用前景。
短句来源
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  相似匹配句对
     CERENKOV RADIATION IN FEL
     自由电子激光器中的Cerenkov辐射
短句来源
     On radiation from printed circuits
     印制电路的辐射
短句来源
     CHANNELING RADIATION
     沟道辐射
短句来源
     A Direct Method to Prove the Condition of Cerenkov Radiation v>c/n
     Cerenkov辐射条件v>c/n的证明的一种简便方法
短句来源
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  cerenkov radiation
Photocathodes for the Detection of Cerenkov Radiation in Deep-Water Neutrino Telescopes
      
It is shown how the spectrum of Cerenkov radiation is altered during its propagation through the waters of Lake Baikal and the Mediterranean Sea.
      
Cerenkov radiation fields in an inhomogeneously filled circular waveguide
      
Cerenkov radiation fields excited in a partially filled circular waveguide with a channel in which an electron beam propagates are studied.
      
The nondelayed emission component is due to the Cerenkov radiation, the weak relaxation component has a relaxation time of ~150±50 μs, and the radiation-induced optical absorption reaches a value of 2.5×10-4 cm-1 (relaxation time, 600-1200 μs).
      
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A quantum theory of Cerenkov radiation in gas medium is estiblished by means of the first-order perturbation of quantum feild theory. The results show that there are some characteristics different from Cerenkov radiation of liquid and solid. The main features of this Cerenkov radiation are as follows: (1) Line emission, asymmetric profile and small red shift; (2) The radiation angle is independent of frequency and decreases along with increasing of the speed of incident charged particles: (3) No speed threshold...

A quantum theory of Cerenkov radiation in gas medium is estiblished by means of the first-order perturbation of quantum feild theory. The results show that there are some characteristics different from Cerenkov radiation of liquid and solid. The main features of this Cerenkov radiation are as follows: (1) Line emission, asymmetric profile and small red shift; (2) The radiation angle is independent of frequency and decreases along with increasing of the speed of incident charged particles: (3) No speed threshold of the charged particles exists; (4) No matter whether and atom is at ground state or at excited state, the pro-bility of Cerenkov radiation is identical. The theoretical predictions coincide with the experiments.

本文采用量子场论的一级微扰论,建立了气体介质中Cerenkov辐射的量子理论,结果表明,它有与固体、液体Cerenkov辐射不同的特点:线状光谱且轮廓不对称和出现小的红移,辐射角与辐射频率无关,并随入射粒子速度的增大而减小,辐射对入射带电粒子的速度没有阈值限制,激发态与基态原子的Cerenkov辐射几率相等,理论结果与实验基本一致。

The Cerenkov radiation field in FEL produced by the relativistic electron beam through a wiggler magnetic field in a medium system is analysed. The working conditions and the relation between physical parameters of Cerenkov radiation in FEL are studied.

本文分析了相对论电子束经过介质系统摆动器磁场时形成的自由电子激光器中的Cerenkov辐射场.研究了自由电子激光中的Cerenkov辐射的工作条件及物理参量之间关系.

FJ-2108P Multifunction Liquid Scintillation Counter has been develeped to measure The activity of lowenergy beta radioactive sample,low energy gamma radioactive isotope and Cherenkov radiation. The test resultsshow that this instrument has the advantage of high detection effciency and low background,which are practi-cally not effected by the environmental conditions.(

为了测量低能β放射性样品、低能γ放射性同位素和切仑科夫(Cerenkov)辐射的强度,研制了FJ-2108P多功能液闪计数器。实际测试表明:该仪器在低本底的条件下,探测效率高,探测效率、本底几乎不受环境条件的影响。

 
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